Our solar system lies in

a)
the central ring of the milky way.

b)
one of the spiral arms of the milky way.

c)
in the galactic center of the milky way.

d)
outside the spiral arms of the milky way.

ANSWER:  B: ONE OF THE SPIRAL ARMS OF THE MILKY WAY

Explanation: There are many arms to every galaxy, in our case, the Milky Way. To each spiral arm is one solar system, which is also why it so difficult to explore space.

im gonna compare the cells to jobs in factory. give brainliest

job in the factory //       cell organelle   //  

shipping/receiving

department                 plasma membrane    

chief executive officer// nucleus

factory floor // cytoplasm

assembly line// endoplasmic reticulum

workers in the assembly line //ribosomes

finishing/packaging department //golgi apparatus

maintenance crew //lysosomes

support beams (walls, ceilings, floors) //cytoskeleton

power plant //mitochondria/chloroplasts

here's what each part of the cell does:

plasma membrane :

regulates what enters and leaves the cell; where cell makes contact with the external environment

nucleus :

controls all cell activity; determines what proteins will be made

cytoplasm :

contains the organelles; site of most cell activity

endoplasmic reticulum:

where ribosomes do their work

ribosomes :

build the proteins

golgi apparatus :

prepares proteins for use or export

lysosomes :

responsible for breaking down and absorbing materials taken in by the cell

cytoskeleton :

maintains cell shape

mitochondria/chloroplasts :

transforms one form of energy into another

answer: "circumcision is a common procedure in which the skin covering the tip of the penis is surgically removed."